A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
1, 5, 30, 210, 1680, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
NM, PK, SI, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
ZA, TG, NM, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
Cell, Tissue, Organ, ?

Find out the odd word/letters/number/number pair from the given alternatives.

Find out the odd word/letters/number/number pair from the given alternatives.

Find out the odd word/letters/number/number pair from the given alternatives.

Select the related word/letters/number from the given alternatives.
36 : 25 : : 100 : ?